10 Gigabit Single-Mode Optical Module Fiber Optic Cable
Single-mode optical modules are designed to transmit 10 Gigabit Ethernet over single-mode fiber, supporting distances from 10 km up to 40 km depending on the module type.
Overview
Single-mode optical modules, commonly in the SFP+ form factor, are used to achieve 10 Gigabit Ethernet (10GbE) connections over long distances using single-mode fiber (SMF) cables. These modules are hot-pluggable and compatible with a wide range of networking equipment, including switches, routers, and data center interconnects .
Key Features
- Distance Support: Standard single-mode modules like 10GBASE-LR support up to 10 km, while extended reach modules such as 10GBASE-ER can transmit up to 40 km over SMF .
- Connector Type: Most single-mode modules use duplex LC UPC connectors, ensuring reliable optical connections .
- Wavelength: Typical single-mode 10G modules operate at 1310 nm for LR modules and 1550 nm for ER modules, which reduces signal attenuation over long distances .
- Power and Monitoring: Many modules include digital optical monitoring (DOM) for real-time diagnostics and power management .
BiDi Modules
For scenarios where fiber availability is limited, 10G BiDi SFP+ modules allow bidirectional communication over a single fiber strand. They use wavelength division multiplexing (WDM) to separate transmit and receive signals, effectively doubling the data channels on a single fiber and reducing cabling complexity and cost .
Applications
Single-mode 10G optical modules are widely used in:
- Data center interconnects (DCIs) for connecting multiple sites
- Campus backbone networks for high-speed building-to-building links
- Metro Ethernet and telecom networks requiring long-distance 10GbE connectivity
- Enterprise networks where high bandwidth and low latency are critical
Summary
Using single-mode optical modules with 10 Gigabit fiber optic cables enables high-speed, long-distance Ethernet connections. Selection of the appropriate module depends on the required distance, connector type, and network design. For limited fiber infrastructure, BiDi modules provide a cost-effective solution by allowing 10G transmission over a single fiber strand .
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